man-of-war

noun7

1. •
   A man whose occupation is fighting in wars; a soldier, a warrior.

   • The LORDE is the right man of warre, LORDE is his name. The charettes of Pharaor his power, hath he cast in to the see. — 1535
2. •
   (historical) A powerful armed naval vessel, primarily one armed with cannon and propelled by sails; a warship.

   • [W]e ventured up to the mouth of the inner harbour, […] the entrance of the harbour blocked up by several old galleons and tvvo men of vvar that the enemy had sunk in the channel. — 1748
3. •
   Ellipsis of Portuguese man-of-war (“Physalia physalis, a jellyfish-like marine cnidarian consisting of a floating colony of hydrozoans attached to a float”).
4. •
   (US) The Arctic skua (Stercorarius parasiticus).
5. •
   Ellipsis of man-of-war bird or (obsolete) man-of-war hawk (“any of a number of seabirds, especially one which attacks other seabirds to take their food”).
6. •
   (no longer used, rare) In full man-of-war's-man: a sailor serving on board an armed naval vessel.
7. •
   (no longer used) A frigatebird (family Fregatidae), especially the magnificent frigatebird (Fregata magnificens).